13686693 has 16 divisors (see below), whose sum is σ = 18686400. Its totient is φ = 8908416.

The previous prime is 13686689. The next prime is 13686713. The reversal of 13686693 is 39668631.

It is not a de Polignac number, because 13686693 - 2² = 13686689 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13686613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29721 + ... + 30177.

It is an arithmetic number, because the mean of its divisors is an integer number (1167900).

Almost surely, 2^13686693 is an apocalyptic number.

It is an amenable number.

13686693 is a deficient number, since it is larger than the sum of its proper divisors (4999707).

13686693 is a wasteful number, since it uses less digits than its factorization.

13686693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676.

The product of its digits is 139968, while the sum is 42.

The square root of 13686693 is about 3699.5530811167. The cubic root of 13686693 is about 239.2027538991.

The spelling of 13686693 in words is "thirteen million, six hundred eighty-six thousand, six hundred ninety-three".